compiler linker flags

[Alexandre Oliva]

On Oct 26, 2000, Robert Schweikert <rjschwei@mindspring.com> wrote:

> Further investigation yielded that the problem is with the virtual table
> emission from the compiler. The virtual table symbols are undefined in
> the object code, which naturally makes impossible for the linker to do
> its job.

This is typically a symptom of not defining some other member function
of the same class.  GCC will emit the vtable of a class in the
translation unit in which the first non-inline virtual member function
is defined.  The C++ standard requires all such member functions to be
defined.

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
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